new research links cosmic rays to cloud formation
Last Updated : GMT 06:49:16
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Last Updated : GMT 06:49:16
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New research links cosmic rays to cloud formation

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Arab Today, arab today New research links cosmic rays to cloud formation

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New research reported on Wednesday has uncovered evidence that cosmic rays have an effect on cloud formation, influencing the world's weather, but found no proof that they help propel climate change, AP reported. Cosmic rays can help produce aerosol particles which foster cloud buildup but they are not likely to be a major presence in the atmosphere, according to a study published in the journal Nature. The study was based on findings from the European Organization for Nuclear Research (CERN)'s CLOUD experiment, which uses a cloud chamber to study possible associations between galactic cosmic rays and cloud formation. Cosmic rays are charged particles that enter the Earth's atmosphere from outer space. They could affect the amount of cloud covering the Earth through the formation of new aerosols -- tiny particles that help cloud droplets to form. Changes in cloud cover of just a few percent have been shown to have an important effect on the world's climate. The Nature study of the CLOUD experiment's results found that, through the influence of sulphuric acid, ionisation could enhance the rate of water droplet growth at certain temperatures. Academics welcomed the findings but said they did not prove that cosmic rays were a major driver of climate change. Although the study confirms that cosmic rays can help produce aerosol particles, it also shows they do not contribute much in the lower atmosphere, he said. "This makes it extremely unlikely that they can affect low clouds anywhere other than cold and pristine marine environments," he added.

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